Input before buying new trans..... [Archive] - GrandAmGT.com Forum

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rizer
05-02-2011, 12:23 AM
Hey guys, im at the point of replacing the trans on my car, wanna get a opinion first.
My issue is when its cold or semi warmed up, the trans has trouble staying in 4th gear. It will bounce back and forth between 3rd/4th (or slipping, not sure) yet still accel fine. Recently after a good 12 mile run on the freeway at about 75mph, the rpms will seem to surge back/forth up to about 500rpms, last a minute or so then go away. Doesnt feel like its downshifting though.

Ive done a drain and fill with new filter and no difference at all, also did a last resort and added a tiny bit of the lucas stuff a couple days ago and still, no difference in anything. I was gonna let it go and drive till it goes out completely cause its just a daily driver but now im selling my jetta so i need a dependable car.

Safe to say new trans is my only option?

HOYS
05-02-2011, 12:24 AM
Any codes?

rizer
05-02-2011, 12:34 AM
never scanned it but no CEL is on...

HOYS
05-02-2011, 09:48 AM
Instead of just "Feeling" if the car is shifting, find someone who has a live data scanner (like HPTuners) and check out what the transmission is doing.